我们从Python开源项目中，提取了以下42个代码示例，用于说明如何使用_collections.OrderedDict()。
def __init__(*args, **kwds): '''Initialize an ordered dictionary. The signature is the same as regular dictionaries, but keyword arguments are not recommended because their insertion order is arbitrary. ''' if not args: raise TypeError("descriptor '__init__' of 'OrderedDict' object " "needs an argument") self, *args = args if len(args) > 1: raise TypeError('expected at most 1 arguments, got %d' % len(args)) try: self.__root except AttributeError: self.__hardroot = _Link() self.__root = root = _proxy(self.__hardroot) root.prev = root.next = root self.__map = {} self.__update(*args, **kwds)
def _convert(cls, name, module, filter, source=None): """ Create a new Enum subclass that replaces a collection of global constants """ # convert all constants from source (or module) that pass filter() to # a new Enum called name, and export the enum and its members back to # module; # also, replace the __reduce_ex__ method so unpickling works in # previous Python versions module_globals = vars(sys.modules[module]) if source: source = vars(source) else: source = module_globals # We use an OrderedDict of sorted source keys so that the # _value2member_map is populated in the same order every time # for a consistent reverse mapping of number to name when there # are multiple names for the same number rather than varying # between runs due to hash randomization of the module dictionary. members = [ (name, source[name]) for name in source.keys() if filter(name)] try: # sort by value members.sort(key=lambda t: (t[1], t[0])) except TypeError: # unless some values aren't comparable, in which case sort by name members.sort(key=lambda t: t[0]) cls = cls(name, members, module=module) cls.__reduce_ex__ = _reduce_ex_by_name module_globals.update(cls.__members__) module_globals[name] = cls return cls
def __reduce__(self): 'Return state information for pickling' inst_dict = vars(self).copy() for k in vars(OrderedDict()): inst_dict.pop(k, None) return self.__class__, (), inst_dict or None, None, iter(self.items())
def __eq__(self, other): '''od.__eq__(y) <==> od==y. Comparison to another OD is order-sensitive while comparison to a regular mapping is order-insensitive. ''' if isinstance(other, OrderedDict): return dict.__eq__(self, other) and all(map(_eq, self, other)) return dict.__eq__(self, other)
def get_initial_images(ggl_img_url): resp = req.get(ggl_img_url, headers=user_agent_header) soup = BeautifulSoup(resp.text, 'lxml') img_divs = soup.findAll("div", {"class": "rg_meta"}) div_dicts = OrderedDict() # we return in order for div in img_divs: try: d = json.loads(div.text) div_dicts[d['id']] = d except: pass #print(div_dicts) return div_dicts
